Arang wears a hair ornament that belonged to Eun Oh's mother. He decides to help Arang because he thinks her situation might provide clues to his lost mother. Not long after, Eun Oh finds out who Arang is, but she still does not remember who she is and what has happened to her. On the other hand, during the effort to get her memory back, Arang meets Ju Wal, who makes her heart flutter for reasons she can't remember.